Hi guys.... I have raised chickens for eggs for about 4 years and recently ordered a few (6) Jumbo Cornish Rocks for butchering. They are 11 weeks old and have been free ranged. Of course I'm the world's worst procrastinator...meaning I'm avoiding the inevitable...but I think I read that they should be butchered at 8 weeks if confined and 13 weeks if free ranged. Does this sound right...and do I have 2 more weeks before they're too...ummm....tough (stew hens)?